There are no consumer tax credits for ENERGY STAR certified homes.
Most of the consumer tax credits for energy efficiency (windows, doors, insulation, roofs, HVAC, and non-solar water heaters) are only available for existing homes. However, a 30% tax credit (including labor and installation), with no upper limit, is available for consumers building new homes (through 2016) for these products:
Small Wind Energy Systems
Fuel Cells (up to $500 per .5 kW of power capacity)
To qualify for the fuel cell credit, the new home you are building must be planned as your "principal residence." To qualify for the credit for photovoltaic, solar water heaters, geothermal heat pumps, or small wind energy systems, they must be installed in a home you own and use as a residence (it does not have to be your main home). Rental units do not qualify. See the Instructions attached to IRS Form 5695 to help you further with this provision.